... grade2) [Fe(NO3)3.9H2O], (%≥): 98.0, 98.03) Water insoluble, (%≤): 0.01, 0.14) Chloride (Cl), (%≤): 0.002, 0.15 ... , (%≤): 0.0037) Zinc (based on Pd), (%≤): 0.0038) Aqueous ammonia insoluble (based on sulfate), (%≤): 0.1, 0.2Packing: 25kg/bag, plastic ...